GPT-6 Astra vs MiMo V2.5 Pro

rates, context and capabilities side by side on the impossibl api, and what the same workload costs on each.

the models at a glance: base rates, context window and modalities
specificationGPT-6 Astra

openai/gpt-6-astra

MiMo V2.5 Pro

xiaomi/mimo-v2.5-pro

input · usd / 1m tok$10.00$0.435
output · usd / 1m tok$50.00$0.87
context window1.05mtokens1.02mtokens
modalities · in → out

takes text and image in, gives text out

takes text in, gives text out

pricing

base api rates by model
base api rates · usd per 1m tokensGPT-6 Astra

openai/gpt-6-astra

MiMo V2.5 Pro

xiaomi/mimo-v2.5-pro

input$10.00over 272k · $20.00$0.435
output$50.00over 272k · $75.00$0.87
cache read$1.00over 272k · $2.00$0.004
cache write · default ttl$12.50over 272k · $25.00not published

brackets are by input tokens per request: a request over a threshold is billed at that bracket's rates for all of its tokens. cache creation can have a separate charge. the estimate below prices one workload at these rates on every model.

specifications

published specifications by model
as publishedGPT-6 Astra

openai/gpt-6-astra

MiMo V2.5 Pro

xiaomi/mimo-v2.5-pro

creatorOpenAIXiaomi
model typeText generationText generation
context window1,050,000tokens1,024,000tokens
input

takes text and image in, gives text out

takes text in, gives text out

outputtexttext
tool callingnot verifiednot verified
releasedsep 3, 2026not published
endpoint/v1/chat/completions/v1/chat/completions

unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.

benchmarks

benchmark scores by model, primary tested configuration
primary configurationGPT-6 Astra

openai/gpt-6-astra

max

MiMo V2.5 Pro

xiaomi/mimo-v2.5-pro

no benchmarks yet

intelligence index · gateway rank52.8#2 of 90not measured
coding index76.9#4 of 60not measured
agentic index51.5#6 of 49not measured
omniscience43.4#2 of 86not measured
gpqa96.1%#1 of 88
not measured
humanity’s last exam54.7%#4 of 89
not measured
terminal-bench v2.188.4%#3 of 57
not measured
mmmu-pro86.9%
not measured
aa-lcr80.7%
not measured
automationbench partial68.5%
not measured
terminal-bench v4.059.1%
not measured
scicode56.5%
not measured
analystagent51.2%
not measured
tau banking41.4%
not measured
multilingual lcr35.0%
not measured
critpt31.7%
not measured
gdp.pdf all-pass31.0%
not measured

GPT-6 Astra source ↗

each column describes the tested configuration named under the model; performance and costs can differ on impossibl. a score one model was not measured on is left blank rather than scored zero. indices are ranked against every model on the gateway with one. last checked 2026-09-10.

estimate your cost

one token workload, priced on every model at the published rates, in usd. change the numbers to match yours.

token workload

total input, including cached tokens

include billable reasoning tokens

the same token usage in each request

a subset of total input, never additional tokens

GPT-6 Astra

openai/gpt-6-astra

estimated usage cost

$35.00

1,000 requests × (1,000 uncached input × $10.00 + 500 output × $50.00) / 1,000,000 = $35.00

base rates: up to 272,000 input tokens per request, inclusive.

MiMo V2.5 Pro

xiaomi/mimo-v2.5-pro

estimated usage cost

$0.87

1,000 requests × (1,000 uncached input × $0.435 + 500 output × $0.87) / 1,000,000 = $0.87

base rates; no context pricing tiers are published.

estimates use published impossibl api usage rates. configured billing adjustments, funding fees, taxes, and custom workspace rates are excluded and may change the final amount.

image and audio usage, cache creation, and additional tool charges are excluded. reasoning tokens count as billable output, even when they are not visible in the response.

summary

GPT-6 Astra and MiMo V2.5 Pro are available through the Impossibl API. they share the /v1/chat/completions endpoint; the model identifier selects the model for a request.

GPT-6 Astra is created by OpenAI. It has a 1,050,000-token context window. Base API pricing (USD): $10.00 per million input tokens; $50.00 per million output tokens. Above 272,000 input tokens per request, context-tier rates apply to the whole request.

MiMo V2.5 Pro is created by Xiaomi. It has a 1,024,000-token context window. Base API pricing (USD): $0.435 per million input tokens; $0.87 per million output tokens.

GPT-6 AstraMiMo V2.5 Pro

this page compares GPT-6 Astra vs MiMo V2.5 Pro as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes.

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